FIELD: medical equipment.
SUBSTANCE: device for automatic detection of the position of an artificial lens or a natural lens in the eye contains: a camera which comprises imaging means and a camera lens and defines an axis of the camera, positioning means adapted to bring the camera into a fixed predetermined position relative to the eye whose images need to be obtained, separate light sources, arranged so that each of the light sources can emit light beams at a respective predetermined angle relative to the axis of the camera and in the direction of the eye whose image is to be obtained, made by means of camera, with camera and light sources unchanged position, with possibility of capturing sequence of eye images, which image needs to be obtained, and storing said sequence on data medium, wherein control means are further configured to switch on and off light sources such that during image capturing light sources are switched on in a predetermined order and that during capture of each of images includes only one predetermined light source, processing means, adapted to recognize individual reflected light reflections on images from a sequence of images and their displacement according to a sequence of images, configured to correlate them, based on the recognized shape and displacement of the corresponding light reflections, with at least one specific Purkinje reflection, wherein the light sources are located around the camera lens along at least one arc of the circle. A device for automatic detection of an artificial lens or a natural crystalline lens in an eye contains: a camera which comprises imaging means and a camera lens and determines a camera axis, positioning means, adapted to bring the camera into a fixed predetermined position relative to the eye whose images need to be obtained, separate light sources, arranged so that each of the light sources can emit light beams at a respective predetermined angle relative to the axis of the camera and in the direction of the eye whose image is to be obtained, made by means of camera, with camera and light sources unchanged position, with possibility of capturing sequence of eye images, which image needs to be obtained, and storing said sequence on a data medium, wherein control means are further configured to switch on and off light sources such that during image capture, light sources are turned on in a predetermined order and that during capturing each of the images only one predetermined light source is included, processing means adapted to recognize individual reflected light reflections on images from a sequence of images and their displacement according to a sequence of images, configured to correlate them, based on the detected shape and shift corresponding light reflections, with at least one specific reflection of Purkinje, wherein the light sources are located on the support plate, and the device additionally comprises one visually distinguishable reference point on the support plate. Method for automatic detection of an artificial lens or a natural lens in the eye based on a sequence of images, obtained using the device for automatic detection of the position of the artificial lens or natural lens in the eye, which receives images of the eye, involves: recognition of separate reflected light reflections and their displacement according to sequence of images, attributing at least one of light reflections to Purkinje reflection by means of recognized shape and displacement of corresponding light reflections, as well as a predetermined angle correspondingly to the corresponding light source, which was included during the corresponding image capturing, calculating the decentration and/or inclination of the lens based on the relative reflections of Purkinje.
EFFECT: technical result of claimed invention consists in improvement of quality of measurements and reduction of measurement error.
10 cl, 4 dwg
